Honestly I don't really care for this shipping. Love-hate relationships hardly ever work in real life, so how would it work in the anime? The way Misty treats Ash just doesn't look right to be love to me.
I also think this shipping is a little overblown in popularity for reasons arbitrary to any dynamic Ash and Misty shared - like it allegedly being "the most popular", and Misty being first in the line of travelling companions. These reasons repel me from liking this shipping, unfortunately.